Wave-meter.



B. v. DEITZ.

WAVE METER.

APPLICATION FILED NOV. I9, 19M- Patented Nov. 14, 1916. I

BUBR V. DEI'IZ, O F SLINGERLANDS, NEW

WAVE-METER.

To all whom it may concern:

.Be it known that I, BURR V. Dnrrz, a

I citizen of the United States, residing at Slingerlands, in the county of Albany and State of New York, have invented a new and useful Wave-Meter, of which the following is a specification.

My present invention relates to improve ments in wave meters and has for its object to provide a means of electric wave measuring of relatively high efficiency and accuracy.

A further object of this invention is to provide actual automatic indication without the usual computations, and comparisons.

To these and other ends the invention consists of certain improvements, and combinations and arrangements of parts all of which will be hereinafter more specifically set forth and described, the novel features being pointed out more particularly in the claims at the end of the specification.

In the accompanying drawing Figure l is a wiring diagram of the wave-meter embodying the present invention. Fig. 2 is a detail view of the indicating disks.

Similar reference characters refer to similar parts in the accompany drawing.

I have found from experience that While an arc is formed by high frequency alternating current across a spark gap or other suitable high resistance, a low voltage current may be caused to flow across the gap through the arc while the arc is maintained. I have also discovered that a high frequency current may be induced to flow in a circuit of resonant period or wave length with relatively high efficiency while a circuit slightly out of resonance ofi'ers considerable resistance to the induction, to the end that high frequency current often takes an unnatural course through considerable resistance in preference to a shorter course of less resistance, apparently because the longer course has a corresponding natural period or wave length to the induced current. According to the present invention I utilize the above named facts by causing high frequency currents to select a path or circuit of corresponding natural period or wavelength from known inductances and capacities, the used parts of the inductances and capacities being indicated by a suitable indicating device.

I have shown in the accompanying drawing and will hereinafter more fully d9-' Specification 'of Letters Patent.

Patented Nov. 14, 1916.

Application filed November 19, 1914. -Seria1 No. 873,076.

scribe a system embodying the present invention which comprises an indicating de* vice operated by relatively low voltage current-and an arrangement of spark gaps, lnductances and capacities, whereby a high frequency current selects a path of a wave length equivalent to its natural period, such selection being automatically indicated.

It will beunderstood that the invention is not .to be restricted to the precise arrangement shown as other arrangements are contemplated embodying the same princi ple and that the invention consists of the principles above mentioned.

In the accompanying drawing, A represents a condenserplate, C, an inductance composed of nine parts of one meter inductance each, 0 to 9' represent ten series gaps forming group C.

D represents an inductance of nine sections of ten meters each, 00 to 90 represent ten series gaps of group D.

E represents an inductance of nine sections of one hundred meters'each, 000 to 900 represent ten series gaps of group E.

B represents the secondcondenser' plate.

K, L, M are indicating disks, K L M are core magnets on disks K, L, M., S represents armature structure on disks. Magnets K, O to 9 are magnets operative with disk K, L, 0 to 9, magnets operative with disk L, and M, 0- to 9 magnets operative with disk M.

Corresponding series gaps, sections of inductance K, L, M, and magnets have corre sponding reference characters. 7 In the system shown, high frequency alternating current flows to and from plate A, through wire -A, through one of the series gaps of group 0, wire F, inductance D, one of the series gaps of group D, wire G, inductance E, one of the series gaps of group E, wire H, to plate B. Current from batteries N flows through wire N, wire F, part of one series gap of group C, to magnet of group K, to wire P to batteries. Also through wire F, magnetic blowout I, wire Gr, magnetic blow out J, wire H, part of one of series gap of group E, one of the magnets of group M, wire 1? to batteries N. Also through one series gap of group D, one magnet. of group L, wire P to terie's N.

In the path of the high frequency current bat- \ ment with readily .seen that by if gap 9 be used nine meters of inductance would be added. In like manner the number of each series gap in this case also represents the number of meters of induc tance added when that series gap is used. One series gap of each group is used. The total of the numbers of the series gaps in use represents the total wave length in question. Magnetic blow outs, I and J are used to prevent the high frequency current from following the circuit of the indicating current.

According to the above phenomena, high frequency current selects a path including such amounts of inductance as will corre spond to acircuit of a wave length or natural period like, or nearly like the natural period of the induced current. In this case, units of wave length are selected from group C, tens from group D, and hundreds from group E. Hence it will be adding the spark gap numbers or placing them in their respective places of units, tens and hundreds, the result is the equivalent wave length in question. I units, tens and hundreds, we have a means of the greatest variety or range of measurethe least number of units of inductance or capacit The automatic indicator shown consists of a multiple circuit of low voltage magnetic currents, so that one magnet of each group is connected in multiple to batteries N, when one series gap of each group C, D, E, is used. The magnets rendered operative by current following the flow of high frequency current through their corresponding series gaps, cause the disks to rotate, so that the core magnet in each disk comes nearest the acting electromagnet. See Fig. 2. The disks K, L, M, are placed in their proper order, K representing units, L, tens, and M, hundreds. In this manner certain figures will be shown by the disks when certain electromagnets are acting which correspond to the number of meters inductance added by that condition. The figuresshould show through an aperture in the common housing which shows the whole width of the disks and enough of their circumference to expose one figure plainly at one time when placed side by side in an operative position. Once this part has been arranged no changes are made, the calibration being done by chang ing the inductance and comparing the reading to that of a meter whose accuracy is known. The range of this meter may be increased to thousands by adding another in-= ductanceof onethousand meters to each section with corresponding series gaps and indicating disks and magnets. This disk is placed at the left of the disk representing hundreds. Higher ranges may be provided in like manner. The instrument herein By arranging the groups of weaves shown and described has a range of from O to nine hundred and ninety nine meters.

In order to record-the wave length of a circuit through which high frequency alternating current is flowing, it is only necessary to place the meter near enough to the trans mitter or source to receive energy enough to operate the indicating mechanism. The action is entirely automatic and a number representing the wave length of the transmitter is shown as it would be written or printed. In case of weaker source of energy it becomes necessary to make direct connections.

By making slight changes, many and va ried uses may be made of the principle involved. Any primary current, or preferably batteries, operate the indicating devices.

Spark gaps are shown in this case but it will be understood that other high resistances are contemplated, among which ap pear many gases, vacuum, liquids and solids.

It is found that this meter when properly used gives far more accurate results than any other type of wave meter so far as applicant can determine. When properly adjusted its accuracy remains unchanged and is unimpaired by variations of any kind in cluding changes of any kind of amperage or voltage.

I claim,

l. A wave measuring device comprising a plurality of grouped, high potential circuits each having inductance and capacity, the inductances being so proportioned that the natural period of each circuit of one group is a unit, of a second group ten units, and of a third group one hundred units, a series of low potential circuits, one for each of the above mentioned circuits and containing a source of low potential, a spark gap and an indicating device in each low potential circuit, the high potential circuits being operatively associated with the spark gaps to cause one or more of them to break down when a high potential current flows.

'2. A wave measuring device comprising a plurality of grouped high potential circuits each having inductance and capacity,

low potential circuits one for each of the above mentioned circuits and a source of low potential, electromagnets, one for each such low potential circuit, a plurality of disks, the

electromagnets being circumferentially ar-- each low potential circuit and disks arranged operative with said electromagnets as meansof indicating action in one or more of the high frequency circuits.

A Wave measuring device comprising a plurality of grouped high potential circuits each having inductance and capacity, a series of low potential circuits, one for each of the above mentioned circuits and con- 0 taining a source of low potential, a specific high resistance and an indicatin device in each low potential circuit, the high potential circuits being operatively associated with the specific high resistances to cause one or more of them to break high potential current flows.

Y BURR V. DEITZ. Witnesses:

CHARLES Z. SMITH, EMMA DEITZ.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D; 0.

down when a 15 

